Patents Represented by Attorney Derek S. Jennings
  • Patent number: 6417789
    Abstract: A highly-efficient system and methodology for organizing, storing and/or transmitting compressed data that achieves optimum compression throughput, enhances overall data compressibility, and reduces decompression latency.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: July 9, 2002
    Assignee: International Business Machines Corporation
    Inventors: David Har, Kwok-Ken Mak, Charles O. Schulz
  • Patent number: 6404533
    Abstract: An optical amplitude modulator for modulating signals for transmission by a fibre optic link. The modulator comprises of a plurality of optical transmitters, whereby each transmitter is driven by an electronic circuit. Generally, each optical transmitter provides a light output, and the light outputs of the plurality of optical transmitters are combined optically for transmission as an optical output signal. Additionally, each of the plurality of optical transmitters has an associated optical filter, whereby each filter has a different level of opaqueness. Each filter, filters light output from the associated optical transmitter.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: June 11, 2002
    Assignee: International Business Machines Corporation
    Inventor: Richard John Fergusson
  • Patent number: 6312833
    Abstract: A multilayered wiring layer having high thermal stability, high stress migration resistance and low electrical resistance. The wiring layer includes at least two layers formed on a substrate wherein each layer has substantially the same component and wherein the relationship between grain size and thickness of each of the at least two layers is 0.5<d/h<2, wherein d is the grain size of each layer and h is the thickness of each layer.
    Type: Grant
    Filed: February 12, 1998
    Date of Patent: November 6, 2001
    Assignee: International Business Machines Corporation
    Inventors: Satoshi Tsuji, Hiroshi Takatsuji, Katsuhiro Tsujimoto